Method of constructing and sealing shipping-cases



' H. R. BLISS.

METHOD OF CONSTRUCTING AND SEALING SHIPPING CASES.

APPLICATION FILED JAN. 26. 1920.

, 1,379,797. Patented May 31,1921.

4 SHEETSSHEET I.

2 P T z Y X fi e I 6 i1: W I X [41 "E III] I I I III";

H. R. BLISS.

METHOD OF CONSTRUCTING AND SEALING SHIPPING CASES.

A P P L l C A T I O N F I L E D l AN. 26, I920. 1,37 9,7971 P t ed May 31, 1921.

4 EEEEEEEEEEEE 2- I H. R. BLISS. METHOD OF CONSTRUCTING AND SEALING SHIPPING CASES.

' A P P L l C A T I 0 N F l L E D J A N 2 6 1 I 9 2 0.

1,379,??? Patented May 31, 1921.

. 4 EEEE TS EEEEE 3- H. R. BLISS,

METHOD OF CONSTRUCTING AND SEALING SHIPPING CASES.

' APPLICATION FILED JAN. 26, I920.

1,379,797 I Patented May 31,1921.

4 SHEETSSHEET 4.

, wire-stitched to the rest of the HERBERT n. BLISS, or Mo'NRoE, MICHIGAN. Y

METHOD OF CONSTRUCTING AND SEALING- SHIPPTNG-CASES.

Specification of Letters Patent.

Application filed .Tanuary 26, 1920. Serial No. 354,174.

To all whom it may concern:

Be it known that I, HERBERT R. BLIss, a citizen of the United States, residin at Monroe, in the county of Monroe and tate of Michigan, have invented certain new and useful Improvements in Methods of Constructing and Sealing Shipping-Cases, of which the followin is a specification.

This invention relates to a method of constructing fiber shipping cases and has for its object a fiber shipping case that can be constructed-and sealed with a minimum use of fiber board and yet has a maximum-strength and a maximum capacity for its dimensions. These features will be more thoroughly amplified after the details have been made known. In the drawings,

Figure l is a plan view of the blank for the side walls.

Fig. 2 is a section on the line 2-2 of end.

Fig. 4 is a perspective showing one of the flaps bent over to the outside preparatory to receiving the end or cover.

Fig. 9 shows how the cover 1s wirestitched to this flap.

Fig. 10 is a section on the line 10-10 of Fi 6.

before it is sealed and as it is ready to receive its contents. 4 F Fig. 12 is a section on the line 12-12 of ig. 13 is a perspective view showing the container with the cover sealed in place- Fig. 14 is a view showing how the cover is container by a machine for that purpose.

Fig. 15 is an enlarged section showing'the wire stitch about to be of the cover and the flap Fig.16 is a similar v1ew stitch is finished.

Fiber shipping cases have heretofore been usually constructed with overlapping of the side wall.

showing how the ig. 3 is a plan view of the blank for each ig. 11 is; a perspective of the container' driven into the flange flanges that form the end walls. Prior to the advent of the machine described in Patent #1,174:,943, of which I am one of the joint patentees, the only commercially successful way of, sealing these overlapping flaps on the closing end oft-he container was to use either glue or the paper sealing strip Patented May 31, 1921.

or both. By employing the thin flexible anvil described and claimed in said Patent #1,174,943 it .is possible to seal the closing end by wire stitching, which has numerous points of superiority over the previous methods of strip thereover.

Another method of constructing and sealing fiber shipping cases is to construct the si e walls in the usual way but without any flaps and then use an end wall with a flange like an ordinary shoe box cover, but instead of fitting the flange over the outside of the side walls the cover is inverted and the flange fitted inside the side walls. This enables'an anvil to be gotten in behind so that the flange may be wire-stitched to the side walls of the case. This method of construction results in considerable saving of materialover the overlapping flap way of sealing a case and runs into very considerable saving. in dollars and cents where cases ing rim has to sustain all of the weight of the box and.contents and very often breaks and starts the box tearing especially in handling.

It is the object of the present invention to aflord a method of constructing and sealing fiber shipping cases which will have all the advantages of economy. in box material attending the last form described and which will have the advantages of capacity and even more strength than that afforded by the gluing or pasting the sealing case that is provided with overlapping flaps.

' a To construct such a box I slot and crease a pieceof fiber board to form the four side walls, as shown in Fig. 1, with the joinlng flap a, which may be turned inside of the side wall at the opposite end of the blank, as is shown in Figs. 6 and 10, and wire-stltched thereto to form the side wall structure of the container. The slots andcreases b and ,V are turned inside of the flanges e and wirestitched thereto. This covermaybe fitted over the bottom of the box in the manner shown in Figs. 11 and 12. Any ordinary anvil of the horizontal arm type can be then inserted in the empty box and the flange of the cover stitched to the side walls of the box to form the bottom closure. V

However, the top cover cannot be fastened to the container of the ordinary type in this way for there. is no way to get an anvil in place to clench the wire stitches. It is due to this reason that the cover has been inverted and inserted within the top opening allowing the anvil to get in on the inside of the rim thus formed. .This, as already explained, has disadvantages which h e been enumerated.

y forming the side wall blanks withthe cover-attaching flap d, these cover-attaching flaps may be bent outside, as shown in Figs. 8, 9 and 11. The top cover may then be fitted over the top of the box including the;bent-over cover-attaching flaps. A thin blade anvil such as shown in Figs. 15 and 16 and described in m prior Patent #1,174:,94:3 may then be lnserted between the bent-back flap and the flange of the cover and staples or wire stitches driven into the flanges and the flaps, as is clearly such a thin anvil.

shown in Figs. 14, 15 and 16. 0f course, it will be obvious that other metallic fasten-v ing means might be likewise clenched through these overlapping members by the aid of In carrying out this method it will be evident that the machine is not a theoretical necessity for with the anvil rigidly supported at one. end the method could be carried out by driving the fasteners in by a hammer. On the other hand, it would be obvious that the wire.

stitching or riveting method could not be carried out without a blade anvil tool.

In the specification I have referred to fiber shipping cases. It will, of course, be

evident that the method applies not only to the so-called fiber shipping cases but corrugated board cases, paste-board or any equivalent material.

avage? until a whole line of stitches is taken, as

shown in Fig. 13. The case may then be turned on another of its sides and the opanvil inserted between the flaps and the side wall of the case.

2. The method of constructing and sealing a fiber shipping case, which consists of providing side walls that are united together and which have attaching flaps parallel with the outside of the side walls, the securing of a flanged cover over the end of the box and over the flaps to overlap'the flaps, the placing of a blade anvil rigidly supported at one end with its free end between the flap and the side wall, and the driving of metallic fastening members through the overlapping flange and flap at different points therealong and clenching the same against the blade anvil as the case is shifted along the bladeanvil.

3. The method of constructing and sealing shipping cases of fiber or equivalent ma- I HERBERT It. BLISS.

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